In starting with a clean slate for our VR38 engine program and developing our Titan Motorsports Billet VR38 block we came to the realization that many street cars would benefit from an upgraded lower billet main girdle. During our FEA analysis of the factory block our simulations revealed block distortion that could lead to main bearing failure and gasket failures.

A new lower girdle was designed using Computer Aided Design and analysis. The result is a product that strengthens key areas of the girdle while mating with the OEM casting, allowing the engine to withstand the abuse that the block endures while producing over 1,000hp more than the factory desired. This CAD engineered girdle is CNC manufactured from a solid block of 7075 aluminum alloy commonly found in the aerospace
industry. 7075 offers strength properties comparable to most steels while providing more corrosion resistance than some other aluminum alloys.

This billet girdle will require line boring to your engine builder’s specifications and will work with the factory 3.8L displacement or stroker applications. This design will be implemented in our upcoming VR38 billet block. Until then, anyone looking to build their own race prepped VR38 with premium parts can benefit from our experience while using the machine shop and engine builder of their choice.

Available Now : Titan Motorsports R35 GTR Billet Main Girdle

Titan Motorsports has partnered with industry leading fastener manufacturer ARP to develop an upgraded crank bolt kit for the Toyota 2JZ engine. These upgraded units are manufactured using ARP 2000 material which offers a tensile strength of 220,000 PSI, over 45% stronger than the factory specified Grade 8 bolt. This increase in material strength is partnered with an oversized washer which is both thicker and larger in diameter to take advantage of the increased clamping load and to properly secure the damper to the crank over a larger surface area.

The additional clamp load delivered helps secure the harmonic damper to the crankshaft allowing it to function as designed, absorbing the unwanted kinetic energy caused by undesired movement of the crankshaft. This reduces the risk of the damper loosening from the crankshaft that can occur in racing environments where high RPMs are the norm. This bolt kit is designed to work with the OEM crank pulley, however we recommend it be paired with our Titan Motorsports Crank Damper to offer the ultimate in protection for your engine.

Available Now : TITAN MOTORSPORTS ARP 2000 2JZ CRANK BOLT